White Dust From Car Air Vents

It s like a fine whitish powder but think more like a fine salt it s slightly gritty and not like talc or dust.

White dust from car air vents.

It doesn t smell and stops after a few. Started the car and noticed something coming from the vents. Why the heck does this white dandruff looking dust come out of all my vents every time i turn on the heat ac. Hi over the past few weeks i have also noticed white powder blowing out of air vents on my 2009 auris 1 33 tr about 32k miles.

The evaporator is made of tubes covered with aluminum fins. It looked so kool and funny with the stage lights highlighting the cloud of white dust lol. The dust normally has a grit to it rather than normal dust you d find around the house. Car year make model.

The unsuspecting drummers were not impressed with our. Your a c evaporator is the source of this white powder. Checked among other things if the ac was not draining and put in a new air filter but problem still continues. White sparkling powder comes out and covers the dash.

Smells horrible and yet mechanic can find nothing wrong. Bill allen owner of mechanics plus in casselberry florida says that air flows through a heater core and an evaporator core before exiting the vents. Terrible smell coming from vents with ac or heat not all the time. It also came out of the top vents when the defroster was on.

Initially thought it was just the cabin filter replaced to no avail then read about air cond fin corrosion potentially associated with failing water pump. Now the white dust could be aluminum oxide or aluminum rust as the fins break down. It s visible at all of the front vents and it has settled on everything that is in front of the vents. It is not coming from outside the car or the cabin air filter would stop it.

Multiple toyota and lexus models suffer from a buildup of white dust on the dash. If there s a smell to the steam or if it s actually smoke you have a larger problem on your hands. If there s a small pinhole which is a small leak typically caused by corrosion in the heater core drivers may have steam coming.